The molality of the solution can be calculated as follows: m = (moles of solute) / (kg of solvent) = (352 g / 62 g/mol) / (648 g / 1000 g/kg) ≈ 8.667 m The freezing point depression is given by the formula ΔTf = Kf * m Substitute the values: ΔTf = -1.86 ºC/m * 8.667 m ≈ -16.1 ºC The freezing point of the solution is the freezing point of pure water (0.0 ºC) minus the freezing point depression, so it is approximately -16.1 ºC.
At what temperature does water boil when using the celsius scale?
Water boils at 100 degrees Celsius on the Celsius scale.
Does chlorine or oxygen has higher boiling point?
Chlorine has a higher boiling point than oxygen. Chlorine's boiling point is -34.6 degrees Celsius, while oxygen's boiling point is -183 degrees Celsius.
What is the temperature of water in degrees Celsius if it is 362 K?
To convert Kelvin to Celsius, you subtract 273. So, 362 K is equal to 89 degrees Celsius.
What is the boiling point of water at 1500 meters?
At an altitude of 1500 metres, pure water will boil at approx 95 deg C.
Why is kelvin scale more commonly used by chemists?
The Kelvin scale is more commonly used by chemists because it is an absolute temperature scale that is directly related to the kinetic energy of molecules. This makes it more suitable for calculations involving gas laws and other thermodynamic processes in chemistry. Additionally, the Kelvin scale does not have negative temperatures, which simplifies many calculations in chemistry.
What is a 99.6 f temperature called?
A temperature of 99.6°F is considered to be a low-grade fever. It is slightly above the normal range of body temperature (98.6°F) but is not typically a cause for alarm unless accompanied by other symptoms. It is advisable to monitor the fever and seek medical attention if it persists or worsens.
Why does ice at 0 degrees Celsius feel colder to the mouth than water at 0 degrees Celsius?
Ice at 0 degrees Celsius is a solid and has a higher thermal conductivity than liquid water at the same temperature. This means that heat transfers more quickly from your mouth to the ice, making it feel colder. Additionally, the phase change from solid to liquid when ice melts in your mouth absorbs heat, making it feel even colder.
What is 10 degree c in Fahrenheit?
-10 degrees Celsius is equal to a temperature of 14 degrees Fahrenheit.
What is the difference between zero grade on the celsius scale and absolute zero?
Zero grade on the Celsius scale is the freezing point of water at 0 degrees, while absolute zero is the lowest possible temperature at which particles have minimal motion. Absolute zero is equivalent to -273.15 degrees Celsius.
How do you Convert 245 degree Celsius into Kelvin?
kelvin = celsius + 273
kelvin = 245 +273
kelvin = 518
Do Objects below zero degrees Celsius still transmit very small amounts of longwave radiation?
Yes, objects below zero degrees Celsius can still emit longwave radiation, although at lower levels compared to warmer objects. This radiation, often referred to as infrared radiation, is a natural process where objects release heat in the form of electromagnetic waves.
Why must temperature always be in units of kelvin before using Charles law?
Temperature must be in Kelvin when using Charles's Law because it is an absolute temperature scale that starts at zero Kelvin, where molecular motion theoretically stops. Since Charles's Law involves the ratio of volumes and temperatures, using the Kelvin scale ensures consistency and accurate results in the calculations.
What physical state is Neon at 20 degrees celsius?
Neon at 20 degrees Celsius would be in a gaseous state. Neon naturally exists as a gas at room temperature and pressure.
Why do you use liquid paraffin to detect melting point and boiling point in a lab?
Because the phase changes (solid and liquid, and even vaporization) are within safe temperature limits and the heat of fusion (enthalpy) is low compared to water -- i.e. it becomes solid again faster than freezing water. Unless you have some dry ice handy.
When water is heated from 30 to 100 degree celsius what happened to its density?
Density decreases as expansion takes place when temperature increases.
Which comes first Celsius Kelvin or Fahrenheit?
The Celsius scale comes first, followed by the Kelvin scale, and then the Fahrenheit scale. This is in terms of historical development and general usage in the scientific community.